(General Physics) a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a type of pyrometer that measures temperature optically or photometrically.See also: Heat, Instruments
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